JPH0746865Y2 - Uninterrupted Water Fluid Pipe Endoscope - Google Patents

Description

[Detailed Description of Device] a. Purpose of the Invention [Industrial field of application] This invention relates to a so-called endoscopic device for observing the inside of a fluid pipe such as a water pipe, and more specifically, without interrupting the flow of the water pipe, that is, under uninterrupted water, The present invention relates to an endoscopic device capable of performing observation.

[Conventional technology]

Cast iron pipes are used for water pipes from the viewpoint of rust prevention,
By using it for many years, it reacts with the water inside and gradually rusts,
The rust becomes a bump and reduces the cross section of the flow path.

For this reason, it is necessary to renew the water pipe before the aneurysm increases more than necessary and the flow passage cross-sectional area does not become smaller than a predetermined value.

In order to observe this situation, conventionally, the upstream and downstream sluice valves arranged in the flow path in advance were closed, a pipe was opened in the section, and the inside was observed from the hole.

However, according to such a method, water is cut off in the upstream and downstream sections of the sluice valve, which not only has a great adverse effect on consumers, but also a large amount of water overflows at the same time as perforation, resulting in poor work efficiency.

[Problems to be solved by the invention]

The present invention has been made in view of the above circumstances and has been made to solve the problems of the above-described prior art, and an object thereof is to provide an endoscopic device that is implemented under uninterrupted water.

B. Configuration of the Invention [Means for Solving the Problems] The uninterrupted water fluid pipe endoscope apparatus of the present invention adopts the following configurations (technical means) in order to achieve the above object. That is, in a fluid pipe endoscope apparatus including a pipe attachment portion, a valve portion, and an endoscope tube portion, the pipe attachment portion is at least a saddle portion that is fixed in a watertight manner across a perforation position of the fluid pipe. And a branch cylinder portion that is erected upright to face the perforation position, and the valve portion includes at least a valve box portion that communicates with the branch pipe portion of the pipe mounting portion, and the valve box portion. And a valve body that opens and closes a flow path across the valve box space, wherein the endoscopic tube portion is fixed to the valve box portion of the valve portion and is fixed to the fixed tube portion, and And a movable cylindrical portion which is fitted in a watertight manner so as to be slidable along an inner peripheral surface of the movable cylindrical portion, the movable cylindrical portion having a lens barrel concentrically arranged on an outer guide cylinder. ,
On the outside of the guide cylinder, a pressure receiving flange is arranged in the gap space of the fixed cylinder portion to partition a water chamber and an air chamber, and one end of a connecting conduit arranged in the gap space between the guide cylinder and the lens barrel is It is characterized in that the guide tube is opened to the outside and the other end is communicated with the water chamber.

[Action]

In the procedure for mounting the fluid pipe endoscope device, the pipe mounting portion and the valve portion of the device, from which the endoscope tube portion is removed, are sequentially attached to the fluid pipe, and a well-known perforation device is used to perforate the fluid pipe under uninterrupted water. . Then replace the perforation device and attach the endoscope barrel,
The valve portion is opened, the movable tubular portion of the endoscope tubular portion is pushed into the fluid pipe through the perforated portion of the fluid pipe, and the interior of the pipe is observed through the lens barrel.

When the movable tubular portion is pushed into the perforated fluid pipe, the pressure water guided to the water chamber acts on the pressure receiving collar, water pressure balance is achieved, and the pushing operation of the movable tubular portion is performed without resistance.

〔Example〕

An embodiment of an uninterrupted water fluid pipe endoscope system of the present invention will be described with reference to the drawings.

1 to 4 show an embodiment thereof. That is, the first
The figure shows this uninterrupted water fluid pipe endoscopic device (hereinafter simply “endoscopic device”).
2) to FIG. 4 show the partial structure thereof.

In the figure, P is a water pipe as a fluid pipe, and Q is a perforation formed in the side wall of the water pipe P.

The endoscopic device S of the present embodiment includes a tube mounting part 1, a valve part 2, and an endoscopic tube part 3.

The tube mounting portion 1 and the valve portion 2 have conventionally known configurations. That is, a so-called T-shaped pipe is used as the pipe attachment part 1, and a saddle part 5 is provided so as to extend over the perforation position of the water pipe P, a branch pipe part 6 is provided upright from the perforation position, and a band part 7. , And a fastener 8 for fastening the saddle portion 5 and the band portion 7.

In addition, a so-called water control valve for work is used for the valve unit 2,
A valve box 12 having flanges 10 and 11 at both ends, a valve lid 13 watertightly fitted to the valve box 12, a valve body 14 housed in the valve box space of the valve box 12, and a valve body 14 thereof. And a valve body 16 including a valve rod 15 for activating the valve. The valve body 14 is usually a valve box 12
In the space formed by the valve cover 13 and the valve cover 13, the valve cover 13 is pulled toward the valve cover 13 and when the water control work is performed, the valve rod 15 is rotated to protrude into the valve box space to block the flow path. The valve rod 15 is projected from the valve lid 13 to the outside, has a turning operation portion 17, and has a blind lid 18
Is screwed on.

The endoscopic tube portion 3 includes a fixed tubular portion 20 and a movable tubular portion 21 that is concentrically slidably fitted in the fixed tubular portion 20.

The fixed cylinder portion 20 substantially forms a cylindrical body, and a cylindrical outer cylinder 22
And an annular front flange fixed to both ends of the outer cylinder 22
23 and a rear flange 24. The flange 23 abuts against the flange 11 of the valve portion 2 and is fixed by bolts and nuts inserted through bolt insertion holes formed at positions facing each other.

Both the front and rear flanges 23, 24 are provided so as to project on the inner diameter side of the outer cylinder 22, and the diameter of the inner peripheral surface thereof is not made larger than the above-mentioned perforation diameter. A packing groove is provided on the inner peripheral surface, and packings 25 and 26 are mounted.

The movable cylinder portion 21 has a double cylinder structure including a guide cylinder 28 and a lens barrel 29.
That is, the guide cylinder 28 has a long straight cylinder shape and is slidably fitted into the fixed cylinder portion 20. The lens barrel 29 is a guide tube 28.
It is arranged concentrically inside. The guide tube 28 and the lens barrel 29 are
The ends are closed by the end members 30 and 31.

More specifically, the outer diameter of the guide cylinder 28 is smaller than the diameter of the perforation Q, and the outer surface of the guide cylinder 28 contacts the packings 25 and 26 of the fixed cylinder portion 20 to maintain watertightness. A pressure receiving flange 32 is fixedly provided outside the guide cylinder 28 so as to be arranged between the front and rear flanges 23, 24 of the fixed cylinder portion 20. In addition, the packing 33 is attached to the groove formed in the outer periphery of the fixed cylinder portion 20, and contacts the inner side surface of the outer cylinder 22 of the fixed cylinder portion 20 to maintain watertightness. Thus, the space formed by the outer cylinder 22, the flanges 23 and 24 of the fixed cylinder portion 20, and the guide cylinder 28 of the movable cylinder portion 21 is divided into the water chamber 34 and the air chamber 35 via the pressure receiving flange 32. . The water chamber 34 and the air chamber 35 are movable cylinder parts 21.
The volume changes due to the movement of. In other words, the movable tubular portion 21
Determine the stroke of. 36 is the outer cylinder 22 and the flange
23 is an air hole formed in the air passage 23 and connects the outside air with the air chamber 35.

In the space 37 between the guide cylinder 28 and the lens barrel 29, an opening at one end thereof is arranged at the front end of the guide cylinder 28, and a connecting conduit 38 having an opening at the other end toward the water chamber 34 is arranged. It That is, in the figure, the running water in the water pipe P passes through the connection conduit 38 and the water chamber.
You are led to 34.

At the front end portion of the lens barrel 29, a viewing window portion 42 formed of a glass body 40 and a reflecting mirror 41 is provided so as to project from the front end member 30, and an eyepiece tube 43 is attached at the rear end portion. There is. An appropriate number of convex lenses 44 are arranged in the lens barrel 29 and the eyepiece tube portion 43, and focusing is performed by adjusting the sliding of the eyepiece tube 43.

An illumination lamp chamber 46 is provided at the tip of the movable tube portion 21, an illumination lamp 47 and a glass window 48 are arranged, and the wiring 49 of the illumination lamp 47 is taken out to the outside through the gap space 37 of the double tube. ,
It is connected to the switch 50 and the power supply 51.

Further, a clamp device 53 is arranged at the root portion of the endoscope tube portion 3, that is, the rear portion. The clamp device 53 is intended to fix the fixed tubular portion 20 and the movable tubular portion 21 that are slidably assembled together, and includes a clamp body 54, a holding piece 55, and a push bolt 56, and the clamp body 54 is stopped. Fixed with the screw 57
It is fixed to the side and the pressing piece is rotated by pushing the pressing bolt 56.
Push 55 onto the movable cylinder 21 side.

The procedure for installing the endoscopic device will be described with reference to FIGS. 5 and 1. It should be noted that the vertical relationship in the drawing is an extrinsic matter, and the relative relationship with respect to the axis of the fluid pipe P has priority, the upper side corresponds to the outer diameter direction with respect to the fluid tube P, and the lower side corresponds to the axial direction with respect to the fluid tube P. .

(1) The pipe mounting portion 1 of the present device S from which the endoscope tubular portion 3 has been removed is attached to the internal observation position of the fluid pipe P, and the valve portion 2 that is continuously connected to the pipe mounting portion 1 is fixed. Flange
A publicly known uninterrupted water drilling device R having a cutter K is attached via 11 and the valve body 16 of the valve portion 2 is opened to open the cutter K.
The water pipe P is pierced by (see FIG. 5 (a)).

(2) The cutter K holding the cut piece is pulled outward from the valve section 2, the valve body 16 of the valve section 2 is closed, and then the uninterrupted water perforation apparatus R is removed.

(3) In this state, the endoscope tubular portion 3 in which the movable tubular portion 21 is pulled upward is inserted into the valve portion 2 via the flange 23 of the fixed tubular portion 20.
(See FIG. 5 (b)).

(4) The valve body 16 of the valve section 2 is opened, and the movable tube section 21 of the endoscope tube section 3 is pushed toward the inside of the water pipe P. In this pushing, the pressure water in the water pipe P is guided to the water chamber 34 through the connecting conduit 38 and presses the pressure receiving flange 32 with a required pressure, so that the pressure balance is achieved and the moving tubular portion 21 is pushed. The operation is done without any resistance.

When the tip of the movable tube portion 21 reaches the inside of the fluid pipe P, the illumination lamp 47 is turned on, the eyepiece 43 is collimated, and the inside of the fluid pipe P is observed.

When the observation work is completed as described above, the movable tubular portion 21
Is pulled up above the valve portion 2, the valve body 16 is closed, and then the endoscope tube portion 3 is removed.

The present invention is not limited to the above embodiment, and various design changes can be made within the scope of the technical idea of the present invention. That is, the following aspects are included in the technical scope of the present invention.

Although the connection conduit 38 is used in this embodiment, if water tightness can be expected, the connection conduit 38 may be omitted and an opening communicating with the fluid pipe P and an opening communicating with the water chamber 34 may be provided.

By mounting a photographic device or an image pickup device on the eyepiece tube 43, the application is further expanded.

C. Effects of the Invention According to the uninterrupted water fluid pipe endoscope apparatus of the present invention, the fluid pipe can be mounted in the uninterrupted water state and the inside of the fluid pipe can be observed under the uninterrupted water state. Greater convenience than the ones. Moreover, the water pressure is balanced when the endoscope tube portion of the present device is pushed into the conduit, so that the mounting work can be easily performed without difficulty.

[Brief description of drawings]

The drawings show an embodiment of the uninterrupted water fluid pipe endoscope system of the present invention,
FIG. 1 is a sectional view showing the overall construction of one embodiment, FIG. 2 is a sectional view taken along the line AA of FIG. 1, FIG. 3 is a sectional view taken along the line BB of FIG. 1, and FIG. The sectional view taken along the line CC of FIG. 1 and FIGS. 5 (a), (b) and (c) are views showing the installation work of the present endoscopic device. P ... Fluid pipe, Q ... Perforation, S ... End device, 1 ... Pipe mounting part, 2 ... Valve part, 3 ... End tube part, 5 ... Saddle part, 6 ... Branch pipe Part, 12 ... Valve box part, 16 ... Valve body,
20 …… Fixed cylinder, 21 …… Movable cylinder, 28 …… Guide cylinder, 29…
… Lens barrel, 32 …… Pressure receiving collar, 34 …… Water chamber, 35 …… Air chamber, 38
...... Connection conduit

Claims (1)

[Scope of utility model registration request] 1. A fluid pipe endoscope apparatus comprising a pipe mounting portion (1), a valve portion (2), and an endoscope tube portion (3), wherein the pipe mounting portion (1) is at least a fluid pipe ( P) is provided with a saddle (5) portion which is watertightly fixed across the perforation position, and a branching cylinder portion (6) which is provided upright to face the perforation position, and the valve portion (2) is At least a valve box part (12) arranged in communication with the branch pipe part of the pipe mounting part (1),
A valve body (16) that opens and closes a flow path across the valve box space of the valve box section (12), and the endoscope tube section (3) is connected to the valve box section of the valve section (2). A fixed tubular portion (20) that is installed and fixed, and the fixed tubular portion (2
0) and a movable tubular portion (21) which holds a predetermined gap space inside and is slidably fitted in a watertight manner along the inner peripheral surface thereof. The movable tubular portion (21) is provided with an outer guide. A lens barrel (29) is concentrically arranged in the cylinder (28), and a pressure receiving collar (32) is provided outside the guide cylinder (28) in a space between the fixed cylinder part (20) and a water chamber (34). One end of the connecting conduit (38), which is arranged by partitioning from the air chamber (35) and is arranged in the space between the guide tube (28) and the lens barrel (29), is located outside the guide tube (28). An uninterrupted water fluid pipe endoscope apparatus characterized in that the water chamber (34) communicates with the water chamber (34) at the other end.